Shelby GT350 (1965–1970)
Carroll Shelby's road-racing interpretation of the Mustang fastback, developed for sharper performance on road and track.
Overview
Ford asked Carroll Shelby to give the successful new Mustang a credible competition identity. Shelby American began with the 1965 Mustang 2+2 fastback in high-performance K-code form and reworked it into the GT350, a road car designed to support homologation for Sports Car Club of America racing.
The early cars were assembled at Shelby’s California facility. Their combination of lower weight, stronger engine performance and more disciplined handling established a new upper edge for the Mustang range and linked Ford’s pony car with Shelby’s successful Cobra racing programme.
1965 specification
The GT350 retained Ford’s 289-cubic-inch small-block V8 but gained a high-rise intake manifold, larger carburettor, revised exhaust and other changes that raised the advertised output from the K-code Mustang’s 271 horsepower to 306 horsepower. A four-speed manual transmission was standard.
Shelby revised the front suspension geometry, fitted firmer springs and dampers, added a larger anti-roll bar and used traction bars to control the rear axle. The rear seat was deleted, helping the GT350 qualify as a two-seat sports car under contemporary SCCA rules. The road cars were finished in Wimbledon White, with blue striping becoming the model’s enduring visual signature.
Competition and development
The more specialised GT350R removed further weight and added racing equipment, body modifications and a more highly tuned engine. GT350s secured the 1965 SCCA B-Production championship and went on to win the category for three consecutive seasons.
For 1966 the road model became more accommodating and gained a wider choice of colours; a batch of GT350H cars was also supplied to the Hertz rental fleet. Later GT350s followed the Mustang’s 1967 and 1969 body revisions, becoming more refined and visually elaborate. Engine specification moved from the 289 to a 302-cubic-inch V8, while Shelby production operations shifted away from their original California setting.
The final cars sold as 1970 models were carryover examples from the 1969 production run. The GT350 name then disappeared from new-car catalogues until Ford revived it decades later.
Key milestones
- 1965: GT350 and competition-focused GT350R introduced.
- 1966: More colours and the GT350H rental programme broaden the range.
- 1967: Restyled GT350 is joined by the big-block GT500.
- 1968: A 302-cubic-inch V8 replaces the earlier 289.
- 1970: Carryover cars close the original GT350 programme.